Metastasis of cN0 Papillary Thyroid Carcinoma of the Isthmus to the Lymph Node Posterior to the Right Recurrent Laryngeal Nerve

ObjectiveThe association between metastasis to the lymph node posterior to the right recurrent laryngeal nerve (LN-prRLN) and cN0 papillary thyroid carcinoma (PTC) located in the thyroid isthmus remains unknown; therefore, our goal was to analyze the characteristics of LN-prRLN metastasis of cN0 PTC...

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Main Authors: Wei Du, Qigen Fang, Xu Zhang, Liyuan Dai
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-05-01
Series:Frontiers in Endocrinology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fendo.2021.677986/full
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author Wei Du
Qigen Fang
Xu Zhang
Liyuan Dai
author_facet Wei Du
Qigen Fang
Xu Zhang
Liyuan Dai
author_sort Wei Du
collection DOAJ
description ObjectiveThe association between metastasis to the lymph node posterior to the right recurrent laryngeal nerve (LN-prRLN) and cN0 papillary thyroid carcinoma (PTC) located in the thyroid isthmus remains unknown; therefore, our goal was to analyze the characteristics of LN-prRLN metastasis of cN0 PTCs of the thyroid isthmus and determine its potential predictors.Patients and methodsThis retrospective study included patients who underwent bilateral central neck dissection between January 2018 and January 2021. The specimen was divided into five groups of prelaryngeal lymph node (LN), pretracheal LN, left paratracheal LN, lymph node anterior to the right recurrent laryngeal nerve (LN-arRLN), and LN-prRLN. Univariate and multivariate analyses were used to assess the association between the clinical pathologic variables and LN-prRLN metastases. Surgical complications were presented descriptively.ResultsA total of 357 patients were included, LN-prRLN metastasis occurred in 23 (6.4%) patients, and LN-prRLN was positive only when there were other LN metastases, especially LN-arRLN metastases. Other independent risk factors for LN-prRLN included foci numbers ≥2, tumor size ≥5.0 mm, and extrathyroidal extensions. The rates of permanent hypoparathyroidism and vocal cord paralysis were 1.1% and 2.0%, respectively.ConclusionLN-prRLN metastases should not be ignored in cN0 PTC located in the thyroid isthmus; however, its dissection is a safe procedure, and the status of LN-arRLN can be a reliable predictor for LN-prRLN metastases.
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spelling doaj.art-12b655681a9b4cde9188bc0a86ab36752022-12-21T21:56:34ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922021-05-011210.3389/fendo.2021.677986677986Metastasis of cN0 Papillary Thyroid Carcinoma of the Isthmus to the Lymph Node Posterior to the Right Recurrent Laryngeal NerveWei DuQigen FangXu ZhangLiyuan DaiObjectiveThe association between metastasis to the lymph node posterior to the right recurrent laryngeal nerve (LN-prRLN) and cN0 papillary thyroid carcinoma (PTC) located in the thyroid isthmus remains unknown; therefore, our goal was to analyze the characteristics of LN-prRLN metastasis of cN0 PTCs of the thyroid isthmus and determine its potential predictors.Patients and methodsThis retrospective study included patients who underwent bilateral central neck dissection between January 2018 and January 2021. The specimen was divided into five groups of prelaryngeal lymph node (LN), pretracheal LN, left paratracheal LN, lymph node anterior to the right recurrent laryngeal nerve (LN-arRLN), and LN-prRLN. Univariate and multivariate analyses were used to assess the association between the clinical pathologic variables and LN-prRLN metastases. Surgical complications were presented descriptively.ResultsA total of 357 patients were included, LN-prRLN metastasis occurred in 23 (6.4%) patients, and LN-prRLN was positive only when there were other LN metastases, especially LN-arRLN metastases. Other independent risk factors for LN-prRLN included foci numbers ≥2, tumor size ≥5.0 mm, and extrathyroidal extensions. The rates of permanent hypoparathyroidism and vocal cord paralysis were 1.1% and 2.0%, respectively.ConclusionLN-prRLN metastases should not be ignored in cN0 PTC located in the thyroid isthmus; however, its dissection is a safe procedure, and the status of LN-arRLN can be a reliable predictor for LN-prRLN metastases.https://www.frontiersin.org/articles/10.3389/fendo.2021.677986/fullpapillary thyroid carcinomathyroid isthmuslymph node posterior to the right recurrent laryngeal nervecentral lymph node metastasislymph node anterior to the right recurrent laryngeal nerve
spellingShingle Wei Du
Qigen Fang
Xu Zhang
Liyuan Dai
Metastasis of cN0 Papillary Thyroid Carcinoma of the Isthmus to the Lymph Node Posterior to the Right Recurrent Laryngeal Nerve
Frontiers in Endocrinology
papillary thyroid carcinoma
thyroid isthmus
lymph node posterior to the right recurrent laryngeal nerve
central lymph node metastasis
lymph node anterior to the right recurrent laryngeal nerve
title Metastasis of cN0 Papillary Thyroid Carcinoma of the Isthmus to the Lymph Node Posterior to the Right Recurrent Laryngeal Nerve
title_full Metastasis of cN0 Papillary Thyroid Carcinoma of the Isthmus to the Lymph Node Posterior to the Right Recurrent Laryngeal Nerve
title_fullStr Metastasis of cN0 Papillary Thyroid Carcinoma of the Isthmus to the Lymph Node Posterior to the Right Recurrent Laryngeal Nerve
title_full_unstemmed Metastasis of cN0 Papillary Thyroid Carcinoma of the Isthmus to the Lymph Node Posterior to the Right Recurrent Laryngeal Nerve
title_short Metastasis of cN0 Papillary Thyroid Carcinoma of the Isthmus to the Lymph Node Posterior to the Right Recurrent Laryngeal Nerve
title_sort metastasis of cn0 papillary thyroid carcinoma of the isthmus to the lymph node posterior to the right recurrent laryngeal nerve
topic papillary thyroid carcinoma
thyroid isthmus
lymph node posterior to the right recurrent laryngeal nerve
central lymph node metastasis
lymph node anterior to the right recurrent laryngeal nerve
url https://www.frontiersin.org/articles/10.3389/fendo.2021.677986/full
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